... good, old time!

> -----Ursprüngliche Nachricht-----
> Von:  Bob Landman [SMTP:[log in to unmask]]
> Gesendet am:  Montag, 10. Januar 2000 21:29
> An:   [log in to unmask]
> Betreff:      Re: [DC] Reference Designators
> 
> Yes, and the crystal was the rock crystal called galena (orginally but
> later germanium and then silicon the first hermetic diodes used a cat
> whisker point contact that emulated the old crystal radio sets.  I
> recall building a Phillmore Jr. way back when and winding my own coil
> too.  Reception was pretty darn good (AM stations really pump pump
> ouit the power).
> 
> These days, we use the "D" designation instead.  yes, K stands for
> coil, more specifically a relay coil.  K on a diode is of course the
> Kathode (though why it is spelled that way eludes me - maybe it's a
> German derivation as in Kathode Ray tube but then the Germans call
> CRTs Braun tubes for the scientist who invented them).
> 
> Bob Landman
>